- 19745,639
- 1975 to 19766,321
- 1977 to 19797,996
- 1980 to 19813,308
- 1982 to 19844,240
- 1985 to 19864,855
- 1987 to 19894,399
- 1990 to 19911,700
- 1992 to 19942,350
- 1995 to 19962,607
- 19971,256
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